Why is Black Box falling/rising?

As of 18-Sep, Black Box Ltd's stock price is currently at Rs 465.75, reflecting a decline of Rs 24.1 or 4.92%. The stock has underperformed its sector by 4.8% today and has experienced a consecutive fall over the last two days, resulting in a total drop of 5.3%. In terms of returns, the stock has shown a negative performance of 3.50% over the past month and a significant decline of 28.24% year-to-date, despite a strong long-term performance of 229.38% over the last three years. The company's ability to service debt appears strong, with a low Debt to EBITDA ratio of 0.93 times; however, its long-term growth prospects are poor, as evidenced by a modest annual net sales growth of 4.50% over the past five years. Additionally, recent financial metrics indicate a decline in profit before tax and profit after tax compared to previous quarters, which may contribute to negative sentiment around the stock.
In the broader market context, the Sensex has increased by 1.80% over the past week, contrasting with Black Box's 3.25% gain in the same period, suggesting that while the stock has performed relatively well in the short term, it still lags behind the overall market. However, the stock's year-to-date performance of -28.24% starkly contrasts with the Sensex's positive return of 6.24%, indicating a significant underperformance relative to the benchmark. Additionally, there has been a decrease in institutional investor participation, with a 0.61% reduction in their stake over the previous quarter, which may further exacerbate the stock's downward pressure as these investors typically have more resources to analyze company fundamentals.